Metal can



FIG. 1 is a perspective view showing my new design;

FIG. 2 is a front elevational view, with a rear elevational view having the same appearance;

FIG. 3 is a first side elevational view, with a second, opposite side elevational view having the same appearance;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view.

The broken lines in the drawings depict probable environment only and form no part of the claimed design. 

CLAIM The ornamental design for a “metal can,” as shown and described. 